Staple binder



'EL-JAHN AND E. E. -KAHL STAPLEBINDER. APPLICATION man Nov. 25. 1916. nsuswfo rii 2a. :921.

3. JAHN AND E. E. KAHL.

STAPLE BINDER. APruc'moN mEu Nov. 25,.` |916. nsneweo FEB. 23, |921.

B. JAHN AND E. E. KAHL.

STAPLE BINDER. l. APPLlcATloN FILED Nov. 25. 1916. RSNEwED FEB. 23, 192|.

PatentedSept. 12, 1922.

3 SHEETS-SHEET 3.

z mja@ Patented Sept.. 12, 1922.

Irisa STATES PATENT OFFICE..

EEETIIOLD JAHN AND ERNEST EMII. KAEL, or NEW BRITAIN, eoNNiizeTIcuT,` AS- sIGNoRs' To THE E. JAHNMANUEACTUEING COMPANY, NEW BRITAIN, CONNECTI- CUT, A. CORPORATION.

STABLE BINDER'.

Application ledfNovember 25,1916, Serial No. 133,357.n Renewed February 23,1921. Serial No. 447,224.

To @ZZ whom t may conce/m:

Be it known that we, BERTHOLD JAHN and ERNEST EMIL KAHL, citizens of ythe United States, residing at New Britain, in jthe county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Staple Binders, of which the following isa specification.

Our invention relates to improvements in staple binders, and the objectof our iinprovement is simplicity and economy in c011- struction and convenience and eiiiciency in use. i

In the accompanying drawing :l

Figure 1 is a side elevation of our im.- proved staple binder.

Figure 2 is a plan -view of the same.

Figure 3 is a bottom view of the same.

. Figure 4 is a side elevation, on an enlarged scale, of the same with one of the side plates removed.

Figure 5 is asimilar view with the parts in a diiierent position.

Figure 6` is aside elevation of --the die member.

Figure 7 is a plan view of the same.

Figure 8 is an end elevation of the same.

Figure 9 is a sectional view,` on-an en larged scale, on the line of Fig. 7.

Figure 10 is a sectional view on the line g/ jz/ of Fig. 13.

Figure 11 is a sectional view on theline u u of Fig. 3. o

Figure 12 is a sectional view ona still further enlarged scale, on the line'oo of Fig. 5. l 'f Figure 13 is a view corresponding to 4 and 5, with the parts in a different position, being on the same scale as the saidy Figs. 4 and 5.

Figure 14 is a bottom view, in part broken away, on the same scale as Fig. 12, of a modification of the die member.

Figure 15 is a sectional view on theline s s of Fig. 14.

Figure 16 is a sectional view on the line t t of Fig. 14.

Figure 17 is aplan view on the same scale as Figs. 4 and 5, cfa portion ofthe blank for one of the side yframe members.

Figure 18`is a perspective view, in part broken away,.of-a portion of one of the staple strips.. l

Figure 19 is aside 'elevation on a reduced scalel of a ymodification ofr our improved staple binder. i

f li`igurek 20fis abottom/ view'of the saine.

f. `Figure 21 is a fragmentary sectional-view. n

on an enlarged scale on the linel e z of Fig.20. i 'Y Figure22 is asimilar view ofk a modied form of construction. f

Figure 23 is a view generally similar to Fig. 13 with the pawls in the raised. position relatively to the anvil member.

Figure 24 isa plan view of the blank for the holding pawl shown in F ig. 23.

Filgure 25 is a similar view ofthe feeding paw f f f Our improved staple kbinder comprises a base 10 having adjacent one end an anvil 11, anda frame 12 hinged to the base 10 adjacent vthe other end as shown at 13, and mechanism housed in the said frame y12 for operating' on sta les-14' supplied in strip form and inserte in the said frame. said mechanism serves yto sever individual staples from the said strip, and to drive and clench the said individual staples,fand comprising a plunger member 15 forfcooperat'- ing with the relatively stationarydie 16 and i with the anvil 11. x

The base 10 is formed of sheet metal, pressed into -shelllike formfso as to form a central yplatform 17 bordered by flange-like The 1 side walls 18 extending around the edges. f

it the anvil end the platform17 is further pressed upwardly to form the anvil 11 and the yoke portion 22 connecting the said arms 2O being positioned in face to face contact with the under sideof the platform 17 and secured in such position by means of a rivet 89. j

The arms 20 are provided with holes for the pivotal pin 13.

The die member 23 has one endp'ositioned n: between `the arms 20 and has a hole for the pivotal pin 13, and thereby serves to provide the pivotal connection between the frame 12 and the base 10.

The die member 23 is in the form of an elongated block extending from the point of pivotal connection to adjacent the anvil 11', being kof suitable length to receive a staple strip of appreciable length, and has the upper portion recessed at the sides as shown at 24, Fig. 10, to provide a fit for the undersideof the said staple strip.

A plurality of studs 64, shown as two in number, are positioned in the lower portion ofthe die member 23, the laterally projecting ends of which register with holes in the twoV side iframe members 25, and a hole 26 is provided adjacent the die 16 for receiving a screw 27 that serves to hold the side `frame members in place and also as a die'clamping screw in a manner to be described.

The die 16 is of peculiar form, as shown, having a conical head 31 at the upper end the largeend being uppermost, a part of the circular upper edge portion of which serves as the die proper or active serves as the stationary cutting edge. The die member 23 is provided with means for housing the said die 16 and permitting of. rotating the same to change the part that ortion.

The said means comprise a sp it in the end portion of the die member 23 'formed by,y a longitudinal slot 32, terminating at the outer end ina bed 90 that tits the die 16.

The said die 16 comprises the conical tapered head 31v at the upper end terminating in an annular shoulder 33 that serves as a base, and a stem 34 that extends downwardly. from the base 33 through the die member 23, the lower tace being provided with a slot 35 suitable for receiving a screw-driver for turning the die 16 to the position desired. y

lThe outer portion of the head 31 overhangs slightly the adjacent end face 36 of the die member 23 as shown at 37.

Thus the die end of the die member 23 is divided to form two opposed arms 38, the ends of which are recessed to bear against the sides of the die 16, the said arms 38 being adapted to be clamped against the die 16 by the screw 27, already mentioned, and thereby hold the die in the adjusted position. As mentioned, the screw 27 serves tohold the two side frames 25 in place on opposite sides of the die member 23 and also etl'ects the holding of the die 16 in the adjusted position, and the particular manner of doing this as shown is as follows the hole 91 in the left side frame member 25 that is opposed tothe head 92 of the said screw 27, is a clearance hole for the 4body ofthe said screw, as is also the hole 26 in the die member 23, the said hole 26 being continued through the two clamping arms 38, and the hole 93 inthe right side frame member 25 is a threaded hole, as shown in Fig. 12 that is engaged with the threaded end of the screw 27. Thus the arms 38 are clamped between the two side frame members 25.

The plunger 15 is a vertically positioned block, having a handle 40 at the upper end, and recesses 41 extending along the lateral faces for engaging with guide flanges 42 on the frame members 25, that operatively position the -plunger adjacent the end of the die member 23. A spring 43, enclosing the upper end portion, 'and bearing by its ends against the said handle 40 and the frame members 25, tends to hold the said plunger 15 in the uppermost position.

The lower end face'94 of the plunger 15 is flat and the face opposed to the end of the die member 23 is generally dat to fit against the end face 36 of the said die member 23 `and at the middle is provided with a longitudinally extending groove 39 (Fig. 12) that fits against the cutting edge 37.

Thus the end face 94 of they plunger 15 serves as the moving shearing die and also as the ,hammer for driving and clenching the staples 14.

The plunger 15 is provided on the inner face with an inwardly projecting wing 44 that cooperates with the internal mechanisin housed in the frame 12, comprising an inwardly directedvfinger 45 at the lower end and a shank portion 46 extending upwardly from the said linger 45 and terminating at the upper end suitably to serve as a stop in'cooperation withthe opposed portion 47 of the frame 12 to limit the upward movement` of the plunger 15.

The said interior mechanism comprises a holding pawl 48, a feedingpawl 51, and a dog 52. The said holding pawl 48 is pivotally mounted on the frame 12 by means ot' a pivotal pin 49 and is held in operating` position by means of a spring 50 suitably to prevent return movement of the staple strip by engaging with one of the staples 14.

The feeding pawl 51 is pivotally mounted on the dog 52 by means of a pin 53 and is furthermore operatively connected with the dog 52 by means of a spring 54 that tends to open out or spread apart the said dog and pawl 51.

The dog 52 is pivotally mounted on the frame 12 by means of the pin 55, and besides serving as a supporting member 'for the feeding pawl 51 is formed so as to rprovide at the rear portion a lug 56 that engages with the opposed portion 57 of the back wall of the frame 12, said back wall being` composed of opposed yflanges 58 ot the frame members 25.

On the side opposed to the wing 44 on the plunger 15 the'dog 52 comprises an outwardly directed lug 59 for engaging with the lug 45 on the plunger 15 and below the said lug 59 the edge portion is in the form of a cam face 60 that extendsdownwardly in a straight line, suitably lfor engaging with the opposed end face ofthe lug 45 on the plunger 15, and thereby position the dog 52 and the feeding pawl 51 during the downward travel of the plunger 1.5, as shown in Fig. 5.

`With the plunger 15 in the position, as shown in Fig. 4, the staple strip serves to position the feeding pawls 51. 1n this position both pawls 51 and 48 are engaged with the staple 14 next to the end one which is positioned in the channel 61 between the guide flanges 42 of the frame and the end face 36 of the die member 23.

During the downward movement of the plunger 15 the feeding pawl 51 is brought tothe position shown in Fig. 5 suitable for( engaging with the next staple 14 and feed-y ing the staple strip along when the plunger 15V isV again elevated. Such forward movement is positively effected by the lug 45 engaging with and lifting the lug 59.

The forward feeding movement of the staple strip is limited by the end staple 14 coming in contact with the guide flanges 42 of the frame. In this position the portion of the connecting neck that connects theadjacent staples 14 that projects beyond the staple is positioned in the open space between the opposed edges of the guide flanges 42.

As described, the forward feeding movement of the feeding pawl 51 is under normal conditions of operation limited by the intervening portion of the staple strip, consisting of two individual staples, and the neck 62 connecting the same. Ik

1n case, however, there is no staple strip in the machine the feeding pawl 51 is carried a little forward of such normal forward position and may be carried to the edge of the die member 23, as shown in Fig. 15. Under these conditions the dog is :tree to move away from the lug 45 and the forward movement is limited by checking the rotative movement of the dog 52 by means of the upper frame screw 63 that engages with the edge of the dog 52, the said screw thus serving as a stop and also as one of the screws* for holding' the side frame members 25 in place.

This feature of the operation serves to etl'ect the ejection of the last staple 14 of the staple strip immediately after the next to the last staple has been cut off and operated upon, and thereby prevents the clog ging` oit the machine by the said last staple.

To consider this feature in further detail with the binder charged with a staple strip and ready for use, with the parts inthe position shown in Fig. 4, and counting from the end opposed to theguide flanges 42, the holding pawl is always in position to engage with and hold the second staple from the end and the feeding pawl is en-` gaged with the said staple. As the plunger descends the lirst staple is cutoff, the second staple is held from moving rearwardly by the holding pawl, and the feeder pawl is brought to the rearmost position, shown .in

'Figa 5, which 4is slightly tothe rear'of the manner, uponl the elevation of the plunger the ejection of the last staple by delivering the same to the channel 61 is eliected by the feedingpawl. The said feeding pawl is moved freely past the space usually occupied by what is initially ther third staple, and also is moved beyond the usual ychecking position to the final checking position mentioned above and shown in Fig. 13, and in this movement carries y'with it the last staple, thus carrying the same positively into the said channel 61.

The side frame members 25 that comprise the frame or casing, are formed of sheet Inaterial of generally triangular forni,A the body portions having holes for engaging with the studs 64 and other holes for a set of frame screws comprising the clamping screw 27, and the upper frame screw 63, already mentioned, and a thirdscrew 65 adjacent the pivotal connection.

The topedge portions are turned .inwardly to form the flanges 58 that meet to form the back wall.

The front edges are vertical and for the the vdie member 23 and in line with the finger portions of the staple strip `mounted on the die member 23, .and are .accordingly positioned suitably to serve asa stop for the said staple strip as the same is fed along the operating mechanism as has been described. i

In the modication shown in Figs; 14, 15

and 16 the die member 23'd is formed of sheet l of a main rpart 68 D 1 v transversely into generally tl-shape, with 'a' set as shown at 70, at about the an oi'- middle portion, whereby 'the top part 7l is slightly narrower' than the base part 72, and recesses 24- are provided for housing the fingers of the staple strip.

The reinforcing part G9 of i-shape of cross-section and fits in the interior of the hase part 72. y

The dieltL is set in the die member Q3n in the same manner generally as inthe single piece die member 23 described, it beingl noted that the head portion 3l of the die 16a extends sufficiently downwardly so that the base portion 33 rests on the reinforcing` member 69.

lllhile we have shown the cutting edge portions of the dies l@ and 13a as circular, we may in some cases provide an octagonal or other 'polygonal form therefor', whereby a straight active cutting portion may be obtained with a proper adjustment of the die, and the die may be turned to present the different sides as' desired. 1 y

ln the modification shown in 19 the staple binderis provided at the bottom with apair of base strips '73 in spaced relation, there being one at each end of the base 10b, that serve as feet and also there is provided a handle 7e in the form of a thumb piece projecting through a recess in the rear wall 58h of the frame 12b that serves when moved away from the normal position by being` depressed by the thumb to lift the pawls and release the staple s rip so that the saine can be moved back and forth along the die block 28 as desired.-

The base strips 'T3 are formed of a strip of sheet material, comprising the body pon tion extending transversely across the l0", and ends 76 turned up against the inclined base flanges i8" and having each end a lug 77 that is turned into a hole 'TS in the said side flange 18h.

The ends 76, because of their angular or inwardly inclined position relatively to the body portion, serve generallj.7 the means for connecting the base strips 73 with the base 10b and the interengagement of the lug and hole described locks the same against longitudinal movement.y

ln the modification shown in Fig. 22 the end 76C is provided with a hole il C to receive lug 77@ in the form of an indentation the sheet material of the base flange 18C.

in the modification .shown in Fig. Z3 means are shown for lifting the pawls comprising' a handle 74 projecting through the rear wall of the frame or casing,

The handle 74C is in the form of arearward extension of the holding pawl 48, the construction of the same being otherwise simiifi-caesaaito the pawl i-8, and the feeding pawl el beingunchanged` l Both parvis are made of s `reet material.

The blank for the holding pawl d8 is shown in l 1 24: and comprises a longitudinally .ending body 'portion '79 having at one end pair of tooth shaped wings S0, one on each side, that are turned downwardly to form theholding teeth, having' the handle "il at the other end, and intermediate the said ends having a pair of side wings 8l that are turned upwardly to form a channel in which `the spring` is housed and having holes 82 for the pivotal pin.

rlhe blank for the feeding pawl 5l is shown in Fig. 25j and comprises pair of side wings hving pivot holes 84: at one end, contogether adjacent the said end by a connecting strip S5, the other ends separated by a space SG. rThe side Sil are bont upwardly relatively to connecting strip 85 so :is to form a ciannel structure, the spring 54 bearing on the connecting strip The ends S7 from the pivotal holes 84 serve as xe feeding teeth, and these are spaced so to he positioned outside of the teeth 8O v providing an off-set bend in they wings r :is sho vn at 8S, adjacent the teeth 87. ln use, the feeding pawl 5l is positioned genernlly above the holding pawl 418, the body portionl'@ of the latter extending along be tween the teeth 8T and below the relatively row channel structure adjacent the olibends 88. rl.`liere'f n'e, the handle Tilmanipulated so as to raise the holding l, 48H the movement is continued the reef ing pawl 5l is also raised and thereby the space between the pawls and the die :noch 2X is clear, and without obstruction `inst freely moving a staple stripV back l forth.

Thus means are pro 'ided for clearing the staple strip space on the die block or die member 23, a feature that is desirable for use in charging the machine and also in case it is desired to remove or shift the staple strip for any reason.

lt is apparent that s me changes from ie specific construction herein disclosed may e made and therefore we do not wish to be understood to limit ourselves to the precise form of construction shown and described, out desire the libert-y to malte such changes, in working our invention, as may fairly come within the spirit and scope of the same.

ldlc claim as our invention zl. ln a staple binder, a die member positioned between a pair of side frames, pivotally connected by one end to the hase, and having a die at the other end, the lower portion of the said die member fitting between the said side frames, and the upper portion thereof having recesses at the sides suitably t0 receive a staple strip, and the vl n said die member being formed of two parts or sheet metal, one of tlie said parts being' bent trai'isversely into generally U-sliape Witli an offset in the side walls to provide for the said recesses, and the other of the said parts being; of U-sliape and fitting and Filling the said. lower portion of tliedie member.

2. In a staple binder, a die member positioned between a pair oit side frames, pivotally connected. by one end to the base, and having a die at the other end, the lower portion of tlie said die member litting between the said side frames, and the upper portion thereof havingrecesses at the sides suitably to receive a staple strip, and the said die member beingformed of tvvo parts f sheet meta-l, one of the said parts being; bent transversely into generally Ushape with an off-set in the side walls to provide for the said recesses7 and the other of the said parts being of U-sliape and fitting and by, the said base being;` of shell-like form,

and having inclined side flanges, a plurality kof base-strips in spaced relation extending across tlie loweiyeclges of the said flanges and having ends extending upwardly against the said flanges, and catcli devices Jonpreventing relative longitudinal movement of the said base strips and side llanges.

BERTHOLD JAHN. ERNEST yEMlL KAHL.

Witnesses:

HERBERT F. JAHN, WILLIAM MAIER. 

